That is a 2022 TaB400, built before May 2022. The vents are the 3-way option fridge which needs external vents for the propane burner system. This is not longer an option, as this Isotherm 3-way fridge is no longer available and has been replaced by a larger 2-way fridge, which does not require external vents. Cheers
2018 TaB400 Custom Boondock, Jeep Gladiator truck, Northern California Coast.
For sure they are fridge vents, lower to intake cooler air and upper to exhaust hot air. Identical to the vents we have on our 2006 Keystone Laredo for our 8 cu ft fridge. Our fridge is propane and 110/120 V only, but the vents are necessary for cooling the cabinet surrounding the fridge when it is operating on propane.
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2015 Subaru Outback 3.6r (unsafe 200lb tongue weight limit until 2020 models)
2020 Subaru Outback XT
Pacific NW
Cheers
Draco dormiens numquam titilandus.